Dynamics of Phosphorus in the Upper Ocean: Application of Cosmogenic 32p and 33p as Tracers

本研究的目的是了解磷通量 海洋的混合层。 磷的放射性同位素（P-32 和P-33）将被用作生物动力学的短暂示踪剂 这种营养素。 已经获得的数据表明， 溶解无机磷的测定方法可行， (DIP)溶解有机磷（DOP）和颗粒有机物 有机磷（POP）已充分开发。 这是一项为期两年的研究 在太平洋和大西洋上， 在机会的基础上决定。 生物学家长期以来一直试图定义磷循环 在海洋的混合层中， 多个隔间之间的多种汇率，如 溶解无机磷、溶解有机磷 和颗粒有机磷。 通过新技术， 磷的短寿命放射性同位素作为示踪剂， 这种营养物质通过各个隔室的运动可以是 定义了 这是一项为期两年的研究， 对海洋上层开放水域进行采样和分析， 太平洋和大西洋。

This research is aimed at understanding phosphorus fluxes in the mixed layer of the ocean. Radioisotopes of phosphorus (P-32 and P-33) will be used as short-lived tracers of the biodynamics of this nutrient. Data have been obtained to show the technique is feasible and methods to measure dissolved inorganic phosphorus (DIP), dissolved organic phosphorus (DOP) and particulate organic phosphorus (POP) are fully developed. This is a two-year study in the Pacific and Atlantic oceans at places and times to be determined on an opportunity basis. Biologists have long attempted to define phosphorus cycling in the mixed layer of the ocean and have faced the difficulties of multiple rates of exchange among several compartments, such as dissolved inorganic phosphorus, dissolved organic phosphorus and particulate organic phosphorus. Through new techniques using short-lived radioactive isotopes of phosphorus as tracers, the movement of this nutrient through the various compartments can be defined. This is a two-year study involving ships of opportunity to sample and analyze the upper layer of open ocean water in the Pacific and the Atlantic.